Piper ARCHER III Pilot Operating Handbook page 354

SECTION 9
SUPPLEMENT 22
SECTION 7 - DESCRIPTION AND OPERATION (continued)
Test Mode
Press the TEST button to start the test mode. The text "TEST" will be
displayed in the bottom right corner of the display for approximately 15
seconds. During this time, the IND-650A Indicator pointer will
incrementally rotate 90°. Press the TEST button again to cancel the test while
in this mode. The pointer will immediately return to its starting point.
REPORT: VB-1611
9-152, 10 of 10
PA-28-181, ARCHER III
ISSUED: JULY 12, 1995
REVISED: SEPTEMBER 12, 2005